update Admin.NET/Admin.NET.Core/Entity/SysDictData.cs.

调整为唯一索引，避免枚举值定义时出现重复导致启动出现主键重复异常提示

Signed-off-by: Lzh666 <422235757@qq.com>

Admin.NET/Admin.NET.Core/Entity/SysDictData.cs

@@ -11,7 +11,7 @@ namespace Admin.NET.Core;
 /// </summary>
 [SugarTable(null, "系统字典值表")]
 [SysTable]
-[SugarIndex("index_{table}_TV", nameof(DictTypeId), OrderByType.Asc, nameof(Value), OrderByType.Asc)]
+[SugarIndex("index_{table}_TV", nameof(DictTypeId), OrderByType.Asc, nameof(Value), OrderByType.Asc, IsUnique = true)]
 public partial class SysDictData : EntityBase
 {
     /// <summary>